Block for heating walls and the like.



AA HOBERTSI. BLOCK F HEAIIVNGVWALLS AND THE LIKE. ,APPHQMIQN HUD JAN. 21. l96. RENEWED MAY 9,19l8

1,295,796... Patented Feb. 1919."

5/ .fiy 22 A. ROBERTS.

BLOCK ,FOR HEATING WALLS AND THE LIKE. APPLICATION FILED JAN.2I, |9|6. RENEWED MAY 9. |9|8- 1,295,796 V Patented Feb. 2;), 1919.-

xmmm w 7Z1]? 665. i a lizflezzfaiw F b gases so kind the ARTHUR. ROBER T S, OF EVANSTON, ILLINOIS.

' BLOCK FOR HEATING WALLS AND THE LIK.E.

iApp1ication filed January 21, 1916, Serial No. 73,407. Renewed May 1 To all "whom it may concern:

Be it. known that -I, ARTHUR ROBERTS, a citizen of the United States, residing at Evanston, in the county of Cook and State 5 of Illinois, have invented certain new and wall for s'eful Improvements in Blocks for Heating alls and the like, of which the following is a specification.

In my Letters Patent of the United States, No. l,l3Q,6 85, issued to me March 23,1915, for improvements in coke ovens there is disclosed .a' construction of heating wall or the like having on its interior a mesh-work of interconnected passages for the heating whichpassages are so formed that the heating gases in passing through them travel in a zigzag manner from the point of entrance toward the. point of exit or delivery. By means of an arrangement of this gases are causeil'to repeatedly imbombard against portions of the the purpose of more perfectly in terchanging the heat betweenthe gases and the blocks,

and for the purpose of preventing the formation of layers of inert gases upon so a manner -ments in recuperative coke the respective coke the surface of the blocks. In the particular construction disclosed in that patent the walls are built up'from blocks having their vertical and horizontal faces recessed in such that when the blocks areset together the aforementioned mesh-Work of passages is provided. In my co-pending application for Letters Patent of the United States for. improveovens, Serial No. 875,503, filed December 4, 1914, there is shown a constructionin which the'heating walls of each coke oven transmit a portion of their-heat tothe carbonizing chambers of ovens,- and also transmit a portion of their heat torecuperatingwalls which lie between adjacent heating walls. The incoming-air for through the aforementioned Walls .andfis heated by them before rea'chin the burners. -In-the construction shown in the said tgipplication," Serial No.-875,503, no particular provision is made for controlling the proportion of heat within the. heating so walls, whichwill be directed intothe carbonizing chamber, as compared to the proportion which will be diverted into theadacent recuperating walls. Ordinarily it is desiredv to use the major portion of the heat 5h extracted in the heating wall'for the heat- Specification of Letters Patent.

;ing the features of the saldfigure including the shown in Fig; 6;

Patented Feb. 25, 193m e, 1913. Serial No. zeaeoc.

ing of the carbonizing chamber, the propor 'tion of heat transmitted into the recuperatbe directed into the re in the said cuperating walls than is desired, or necessary.

One of the objects of the present invention is to provide a form of heating wall where by. the desired proportion of heat will naturally travel toward the interior of the carbonizing chamber, leaving only a desired proportion for the heating of the recuperatlng structure. ther object is to provide a construction whereby this result may be attained in a heatingwall built up from blocks having their, vertical and horizontal faces recessed so as to provide a mesh-work of interconnected gaspassages. Other objects and uses of the invention will appear from. adetailed description of the same, whichconsists in-the features of construction and combinations of parts hereinafter described and claimed. Referring to the drznvings: Figure 1 shows a vertical section through a portion of a bench of coke ovens embody presentinvention, adjacent heating to In this connection a fun walls of two consecutive coke ovens, and also the intermediate recuperating structure;

F 1g. 2 shows a plan view of one form of notched block embodying the features of the present invention;

Fig. 3'shows a side elevation of the block shown in Fig. 2;

Fig. 4 shows a-plan view of a keystone block corresponding to the bloclrshow'n in Figs. 2 and 3; i the burners, travels recuperating Fig. 5 shows a side elevation oftheblock Fig. ti showsjla plan view of a modified form'ofblock embodying the features of the present invention;v

Fig 7 shows a side elevation of the block Fig. 8 shows a plan view of a keystone block corresponding to the block: shown in l ifli y 6 and 7; I

Fig. 9 shows a side elevation of the block shown in Fig. 8;

Fig. 10 shows a fragmentary horizontal section taken on the line 10 of Fig. 1 looking in the direction of the arrows;

Fig. 11 shows a fragmentary horizontal section taken on the line 11-11 of Fig. 1

walls are designated by the numerals 15 and r 16. Between the heating walls 15 and l'fi is the recuperating structure 17. The incoming air travels from a channel 18 up- 20 ward through the passages of the structure 17 to the burners 19 where said air mixes with the gas and burns, the burning mixture passing down through the heating walls,

Eachof the heating walls is'provided on "its interior portion with a mesh-work of interconnected passages 20, best shown-1n.

Figs. 1()l, 11 and 12. These passages are secured by building up the heating, -walls from blocks having their horizontal and vertical faces recessed so that when said. blocks are set together the recesses will cooperate to provide the aforementioned passages.

' The size, shape and position of the passages. I is dependent upon the manner in which the a recesses are formed in the blocks from which 4311s heating Walls are constructed. Inthe construction disclosed'in the aforementioned Letters Patent, No. 1,132,685, the notches are rectangular in form, so that the gases will I 40 travel down through all portionsof the passages with equal facility. In order to divert the majo r portion of theheat toward the carbonizin'g chamber the passages should be so formed that the major portion of the heat will be extracted or delivered from the gases djacent to said chamber instead of adjacent to the recuperating structure.

In the blocks shown in F'gs. 2, 3, 4 and 5 the .abovementi-oned .result is secured by forming the notches deeper at their ends 21 adjacent to the carbonizing chamber, than" at their ends 22 adjacent to therecuperating structure, so that when the blocks are set together to build up the wall, the passages 66 will besubstantially of the shape shown in Figs 10 and 11. Examination of thcsefigures shows that those portions of the passages adjacent to the carbonizing chambers are very much larger than those portions ad- 0o jaoent to the recuperating structure. so that the major portion of the heating efi'ect' is obtained close to the carbonizing chambers.

In the construction of blocks shown in Figs. 6, 7, 8 and 9 the notches are so formed 06 that the portions 23 adjacent to the carboniZing chambers present a greater surface for the extraction of heat per linear unit of block than do the portions 24 adjacent to the recuperating structure. This result iS secured by corrugating a'portion of the notch adjacentto the carbonizing chamber,

leaving the remaining portion of the notch which is adjacent to-the recuperating structure plain or nncor'rugated. By use of this arrangement a larger percentage of the total heat will be extracted from the gases at a point adjacent-to the carbonizing chamber than at a point adjacent to the recuperating structure, because the extraction of heat from the gases depends among otherthings upon the amount of superficial area against which they travel.

It will be understood that the division of heat in the two directions, namely, toward the carbonizing chamber and toward the recuperating structure is largely dependent upon the distance which the heat must travel in each direction through the body of the blocks. There is a tendency for the heat to take the shortest path of travel, and, therefore, by so fOI'IIliIlg the blocksthat-the major portion of the heat is extracted adjacent to the carbonizing chamber, .not only is the major portion'of the heat extracted at the most advantageous position, but also the dis tancewh-ich said heat will have to travel .toward the carbonlzing chamber is rendered short as possible.

It will be understood that many other forms of passages m ight be devised than thoseprovided by blocks of the particular forms herein disclosed,and for that matter many other .fomijls of block might also be devised. for accomplishing the results mentionedhereih; However, it will be understood that I contemplate within the scope of my invention-any form of heating wall or the like in which the major portion of the 'heat will be'transmitted in one direction with a greater facility than in the other direction, and also that I contemplate withinjthe scope'ofinv invention other suitable forms of block for accomplishing this result.

Iclaim: 1; The combination with a recuperating structure, of a heating wall adjacent to said structure, the heating wall comprising blocks laid up in courses, each block having at least one side face and t least one horizontal face recessed, the recesses of the various blocks communicating with each other to provide a mesh-work of passages on the interior of the heating wall, the recesses of the blocks being suitably formed for the abstraction of a larger proportion of heat from. gases in that portion of the heating wall farthest from the recuperating structure than in'that portion of theheating Wall closest to the recuperating structur i structure, of a heating Wall in that portionofthe heating wall lying clos .blocks communicating with each other to" 4 lected sages, the recesses being so enemas A a recuperating adjacent to the same, said heating wall being formed from blocks, selected ones of said blocks being re 2. The combination withcessed in their side andbottom faces, .to

thereby provide a mesh-work of passages on the interior of the heating Wall, said recesses being suitably formed for the abstraction of 1 a larger proportion of heat from the gases-in that portion of theheating wall lying farthest from the recuperating structure, than est to the recuperating structure.

3. A heating wall comprislng. courses of blocks, selected ones of said blocks having atleast one side face" and at least one horizontal face recessed, and the recesses-ofthe. various provide within the body of the wall a mesh- Work of interconnectedpassages, the recesses being suitably formed forthe abstraction of a greater amoun of heat from the gases adacent to one surface of the heating wall than adjacent to the opposite surface of said Wall.

4. A heating Wall comprising-blocks, so-

two or more adjacent faces, andthenec esses of the various blocks communicating with each other'to provide on the iiiterior of. the Wall a mesh-work of interconnected formed that a greater portionof heat is abstracted from the gas adjacent to one surface of'thewall than adjacent to the oppositesnrface of the lected ones of 5. A heating wall comprising said blocks having recesses in two contiguous faces, the'recesses of the variousflblocks communicating with each other to provide within, the body ofthe walla meshwork of inter onnectcd passages, and the recesses being'suitably formed for the abstraction of a greater amount of heat from,

the-gases adjacent to one surface of the heating \v-all than :uljacen-t'to t-he oppositesurface of said wall.

6. A heating Wall con1prisiug blocks, st

looted-ones of said blocks being suitably recessed to provide within the body of the wall a gas passage, and lho recesses being suitably formed for the abstraction of a greater amount of hcatfrom the gases adjacent to ones of said blocks being recessed on gas pasblocks, s'e-- o'nesurface of the'heating-wall than adjacent to the opposite surface of'said wall.

7. A heating wall comprising blocks, selected blocks being recessed for the provision of a gas passage within the body of the wall, the arrangement being such that a greater amount of heat is delivered from the gases into one face of the wall than into the opposite face thereof.

8. As a new article of manufacture, an in tegralblock for a comprising a centralneck and a pair. of enlarged end portions, the neck being of reduced cross-section as compared to the end portions, one end of the neck being corru- -gated and the other end thereof being plain,

said central portion being plain, for the purpose of giving added surface tothe corrugated portion of the block, for the purpose specified.

10, As a newurticle of manufacture, a block for a heating wall, said block having its end portionssuita'hly formed for coiiper- 'ation with other blocks to provide a heating being wall, the central portion of the block of reduced cross-sectional area, one end of said reduced portion being corrugated and the other end thereof being plain for the purpose of'giving added surface to the corruga-ted portion of the block, for the purpose specified.

vll. As a new article ofmanufacture, a block for-a heating wall, having its end portions suitably formed for engagement with other blocks toproridc a heating wall. the central portion of-the block being of reduced cross-section, and-of suitable formation intermediate the endportions' to provide increased hcat ahs't-r u ing. ability at one end of the block for-th'e-gfiur' rise/specified.

t ART UR ROBERTS.

Witnesses:

'FRANOES M. Fnos'r, THOMAS A. lianm'uu, Jr.

heating wall, said block portion of the block, for the of manufacture, a

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